Posted: Wed 18 Jan 2012, 15:21 Post_subject:
SOLVED : we can continue to install the printer #!Sub_title: SOLVED : we can continue to install the printer without passwords.

Thanks :

followed the instructions on the link and edited /etc/cups/cupsd.conf
I can now do anything in cups without needing a non-existent password.
I changed all the "AuthType" to "None" and Commented out "Require user" lines. I also changed the order to allow,deny.